Answer: The answer is: "One of Dr. Albrech's dental assistants told the dentist he should buy a machine that would sterilize his tools without using any water because water tends to cause the tools to rust over time. In terms of the buying unit, the dental assistant had the role of influencer."
Explanation:
The dental assistant just made a suggestion but giving Dr. Albrech a powerful reason why he should buy the machine.
